Thousands of people from across the country participated in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Thousands of people from across the country participated in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Thousands of people from across the country participated in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Amber Fields, of Louisville, Kentucky, shown here intently listening to the speeches, was among thousands of people from across the country who participated in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Some of the thousands of people who participated in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

Karen Thompson, 56, of Staten Island, attended the events at the Lincoln Memorial in Washington, D.C. to commemorate the 50th anniversary of the 1963 March on Washington. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Diane Johnson, 64, right, of Lakeview, and her sister Kaen Thompson, 56, of Staten Island were among Long Islanders participating in the events at the Lincoln Memorial in Washington, D.C. (Aug. 24, 2013)

(Credit: Newsday / John Paraskevas)

Thousands of people from across the country participated in the events at the Lincoln Memorial in Washington, D.C., to commemorate the 50th anniversary of the 1963 March on Washington. (Aug. 24, 2013)

(Credit: Charlie Archambault)

WASHINGTON, DC_AUGUST 24,2013: Marchers arrive on the National Mall for the 50th Anniversary of the March on Washington.

(Credit: Charlie Archambault)

Rep. John Lewis, Rev Al Sharpton, Nancy Pelosi and others prepare to kick off the 50th Anniversary of the March on Washington. (Aug. 24, 2013)

Demonstrators from Our DC, a grass roots organization, march at the 50th Anniversary of the March on Washington. (Aug. 24, 2013)

(Credit: Charlie Archambault)

Crowds around the Reflecting Pool listen to speakers at the 50th Anniversary of the March on Washington. (Aug. 24, 2013)

(Credit: Charlie Archambault)

Rep John Lewis, Rev Al Sharpton, Nancy Pelosi and others prepare to kick off the 50th anniversary of the March on Washington. (Aug. 24, 2013)

(Credit: Getty Images)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King, Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King, Jr.'s 'I have a Dream' speech on the National Mall in Washington, DC. (Aug. 24, 2013)

(Credit: Getty Images)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

Thousands of people line the reflecting pool near the Lincoln Memorial while listening to speakers at the 50th anniversary of the March on Washington and Dr. Martin Luther King, Jr.'s "I have a Dream" speech in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

People arrive at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

Actor Danny Glover arrives at the National Mall to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

People hold signs as they gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall. (Aug. 24, 2013)

(Credit: Getty Images)

People hold signs and gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

The Washington Memorial is lit in the early morning as people gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

The Washington Memorial is lit in the early morning as people gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King, Jr.'s "I have a Dream" speech on the National Mall in Washington, DC. (Aug. 24, 2013)

People hold signs as they gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

A person holds a flag as people gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: Getty Images)

People hold flags as they gather to celebrate the 50th anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream" speech on the National Mall in Washington, D.C. (Aug. 24, 2013)

(Credit: AP )

Dorothy Meekins holds up the national flag with the picture of President Barack Obama as she attends the rally, commemorating the 50th anniversary of the 1963 March on Washington at the Lincoln Memorial in Washington. (Aug. 24, 2013)

(Credit: AP )

Claudia Hanes from Kentucky holds a placard during a rally to commemorate the 50th anniversary of the 1963 March on Washington at the Lincoln Memorial in Washington. (Aug. 24, 2013)

The Washington Monument is mirrored in the Reflecting Pool just before sunrise before an event to commemorate the 50th anniversary of the 1963 March on Washington at the Lincoln Memorial in Washington. (Aug. 24, 2013)

(Credit: AP )

The sunrise gives a golden hue to the Lincoln Memorial before an event to commemorate the 50th anniversary of the 1963 March on Washington in Washington. (Aug. 24, 2013)